What Uptime’s 2026 survey says about capacity planning and rack density
Capacity Planning and Rack Density: 2026 Insights
Data centre operators face mounting pressure to forecast capacity accurately as infrastructure demands surge. According to Uptime Institute’s 2026 Global Data Center Survey, 76% of operators report management concerns about capacity planning—a significant jump from 68% just two years ago. This growing gap between planning expectations and operational reality demands strategic solutions.
The survey reveals a critical shift in physical infrastructure: average rack density has climbed to over 11 kW per rack, up from 9 kW in 2025, intensifying the need for precise capacity planning. Understanding these trends in rack density and power consumption enables operators to optimize infrastructure investments, prevent costly overprovisioning, and maintain competitive performance in an increasingly dense computing environment.
What Uptime’s 2026 survey says about capacity planning and rack density
76% of data centre operators say management is at least somewhat concerned about forecasting capacity, up from 68% in 2024. The most typical rack in Uptime Institute’s sample now draws more than 11 kW, up from 9 kW a year earlier.
Uptime Institute published its Global Data Center Survey 2026 in July. It is the 16th annual edition, with more than 800 data centre owners and operators responding. Two results bear directly on capacity planning, and they point the same way.
The first is worry. 35% of respondents say management is very concerned about forecasting future capacity and 41% somewhat concerned, which gives the 76%. Uptime says this likely reflects uncertainty about the scale, timing and location of future demand, especially as AI and higher-density workloads change what a facility needs in power and cooling.
The second is density. For the first time the average of modal rack densities passed 11 kW. A year earlier it was 9 kW.
What modal rack density means
The modal rack density is the most common rack power draw in a facility. Uptime asks each respondent for that figure, then averages the answers across the sample.
It describes a typical rack, not the busiest one. It also says nothing about how far the densest racks in the same hall exceed the typical one, which is what a power and cooling plan has to cover.
More worry, and denser racks to forecast
Read the average with care
The 11 kW figure is pulled up by a small number of new facilities with typical racks above 30 kW. Without them the average is 7.8 kW, up from 7.5 kW in 2025.
The tail matters more than the middle. 24% of respondents now run some racks at 30 kW or above, up from 19% in 2025. Most of that increase is in the 50 kW plus range, reported by about one in seven respondents, including some facilities with racks above 100 kW. The majority of facilities still have none at 30 kW or above.
For one hall, that means racks of 5 kW can sit beside racks of 50 kW or more. A plan built on the average describes neither.
| Concerned about forecasting capacity | 76% at least somewhat, 35% very. Was 68% in 2024. |
| Average modal rack density | Above 11 kW. Was 9 kW in 2025. |
| Without super-dense facilities | 7.8 kW. Was 7.5 kW in 2025. |
| Racks at 30 kW or above | 24% of respondents. Was 19% in 2025. |
| Racks at 50 kW or more | About one in seven respondents, some above 100 kW. |
| Most common band | 8 kW to 15 kW in about a quarter of facilities. |
Where measurement comes in
Forecasting future demand is hard, and no tool changes that. Uptime’s Andy Lawrence, speaking to Data Center Knowledge, put it this way: “No one – very few people – really [has] a clear answer to a lot of these issues.”
What you can fix is the starting point. Sunbird’s response to the survey is to replace estimates with measurements. Its Auto Power Budget sets a device’s power budget from its measured load instead of its nameplate. What-if analysis models new equipment before it is installed. Data Center Visualization shows rack capacity in 2D and 3D, and Data Center Power Management tracks utilisation from the facility feed down to the IT equipment.
Sunbird reports that Comcast used Auto Power Budget to raise utilisation of its existing facilities and power resources by 40%. That is a company-reported figure from a Sunbird case study.
Planning from the average
- Nameplate power assumed for every device
- One density figure applied across the hall
- New equipment checked by spreadsheet
Planning from measured load
- Budget set from what each device draws
- Capacity read rack by rack
- New equipment modelled before it is installed
What the survey does not tell you
The survey is global, and 52% of respondents were in North America and Europe. We found no Singapore breakdown in the public report. Treat the figures as a direction of travel and compare them with your own racks.
Frequently asked questions
What did the Uptime Institute 2026 survey find about capacity forecasting?
Uptime’s Global Data Center Survey 2026 found that 76% of respondents say management is at least somewhat concerned about forecasting future data centre capacity requirements, up from 68% in 2024. 35% are very concerned. Uptime says this likely reflects uncertainty about the scale, timing and location of future demand, especially as AI and higher-density workloads change demand for power and cooling.
What is the typical rack density in 2026?
Uptime reports that the average of modal rack densities surpassed 11 kW for the first time, up from 9 kW in 2025. Excluding facilities with typical racks above 30 kW, the average is 7.8 kW, up from 7.5 kW. Racks between 8 kW and 15 kW are the most common density band in about a quarter of facilities.
How many data centres run racks at 30 kW or more?
24% of respondents say they now have some racks at 30 kW or above, up from 19% in 2025. Most of the rise is in the 50 kW plus range, which about one in seven respondents report, including some facilities with racks above 100 kW. The majority of facilities still have no racks at 30 kW or above.
Why is the average rack density misleading for one data hall?
The average is taken across facilities, and a small number of new high-density sites pull it up. A single hall can hold racks of 5 kW beside racks of 50 kW or more. Planning power and cooling from an average describes neither group, so capacity plans work better when they use measured load per rack.
What does Sunbird DCIM offer for capacity planning?
Sunbird describes four relevant capabilities. Auto Power Budget sets a device’s power budget from its measured load instead of its nameplate. What-if analysis models the effect of adding equipment. Data Center Visualization shows rack capacity in 2D and 3D. Data Center Power Management shows power capacity and utilisation from the facility feed to the IT equipment.
Do the survey figures apply to Singapore?
The survey is global. More than 800 data centre owners and operators responded, and 52% were in North America and Europe. We found no Singapore breakdown in the public keynote report, so treat the figures as a direction of travel and compare them with your own rack data.
Start from your own racks
Enova Technologies is an authorised Sunbird DCIM partner in Singapore. Send us your rack count and the loads you can measure today, and we will show you what Sunbird would do with them.
Ask about Sunbird DCIMSources: Uptime Institute, Global Data Center Survey 2026, UII Keynote Report 209, July 2026. Quote from Data Center Knowledge, 31 July 2026. Sunbird capabilities and the Comcast figure from Sunbird’s blog post Data Center Capacity Planning Anxiety is Rising in 2026, 10 September 2026.
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eNOVA Technologies is Singapore's specialist distributor for data centre IT management solutions, representing Adder, Guntermann & Drunck, Raritan, Sunbird, ZPE Systems, and VuWall across Singapore and Southeast Asia. Our technical content is produced with AI assistance and reviewed by our in-house team before publication.
This article was produced with AI assistance and reviewed by the eNOVA Technologies team. All technical claims are verified against manufacturer documentation.
